Best Prog metal Album of All time

What do you guys think is the best Prog metal album ever? Id have to go with probably either Operation Mindcrime or Images and Words. Maybe even Sound of Perseverance by Death (hey according to Wikipedia they're prog) or maybe even Abigail if that could be considered having prog elements

Unquestionably, Octavarium.With both Liquid Tension Experiment being close runners up.Colors by Between the Buried and Me ranks up there as well.

Someones knowledge of guitar companies spelling determines what amps you can own. Really smart people can own things like Framus because they sound like they might be spelled with a "y" but they aren't.

also, to stray away from most of the cliched prog albums, and put forward something fresh, I would say "The Black Light Syndrome" featuring Steve Stevens, Terry Bozzio, and Tony Levin.

but as much as I absolutely hate Dream Theater right now, I cannot deny the incredible legacy of albums like "Images and Words" and "Awake".

EDIT: actually to keep it real fresh, I would suggest people here to check out some select Ozric Tentacles albums, notably, "Spirals in Hyperspace", "Jurassic Shift", "The Floor's Too Far Away", and "Waterfall Cities".